Timberframeguy

This is what i'm concerned about, perhaps UFH without the concrete floor is solely for gas boilers which can run at a higher temp? Yes I am planning to insulate between the joists while the house is a building site.

I am currently in the process of a designing my extension and am looking at ASHP with the associated grants as we tearing the house apart anyway so may as well use the opportunity to upgrade the CH. My question is would underfloor heating with the pre routed weyroc boards be viable with an ASHP or do you really need a solid concrete floor to achieve the required heating through under floor? Thanks!

Hi all, I have an existing brick & block single storey rear extension which I am looking to take down to the DPC level and re-do in a timber frame/timber clad construction using 150 timbers. Can anyone help me with the detail on fixing a 150 timber sole plate down onto the existing brick/block work above the DPC? The total width of the existing wall is 240mm including a 60mm cavity. Thanks!